SG11202011333WA - Method and apparatus for calculating downmixed signal and residual signal - Google Patents
Method and apparatus for calculating downmixed signal and residual signalInfo
- Publication number
- SG11202011333WA SG11202011333WA SG11202011333WA SG11202011333WA SG11202011333WA SG 11202011333W A SG11202011333W A SG 11202011333WA SG 11202011333W A SG11202011333W A SG 11202011333WA SG 11202011333W A SG11202011333W A SG 11202011333WA SG 11202011333W A SG11202011333W A SG 11202011333WA
- Authority
- SG
- Singapore
- Prior art keywords
- signal
- calculating
- downmixed
- residual signal
- residual
- Prior art date
Links
Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/0204—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
- G10L19/0208—Subband vocoders
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/16—Vocoder architecture
- G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04S—STEREOPHONIC SYSTEMS
- H04S3/00—Systems employing more than two channels, e.g. quadraphonic
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/0204—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders using subband decomposition
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L2019/0001—Codebooks
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810548874.9A CN110556116B (en) | 2018-05-31 | 2018-05-31 | Method and apparatus for calculating downmix signal and residual signal |
| PCT/CN2019/089232 WO2019228447A1 (en) | 2018-05-31 | 2019-05-30 | Method and apparatus for computing down-mixed signal and residual signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SG11202011333WA true SG11202011333WA (en) | 2020-12-30 |
Family
ID=68698766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SG11202011333WA SG11202011333WA (en) | 2018-05-31 | 2019-05-30 | Method and apparatus for calculating downmixed signal and residual signal |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US11961526B2 (en) |
| EP (1) | EP3786946A4 (en) |
| JP (1) | JP2021525391A (en) |
| KR (2) | KR102618380B1 (en) |
| CN (1) | CN110556116B (en) |
| BR (1) | BR112020024140A2 (en) |
| SG (1) | SG11202011333WA (en) |
| WO (1) | WO2019228447A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105359210B (en) | 2013-06-21 | 2019-06-14 | 弗朗霍夫应用科学研究促进协会 | MDCT frequency spectrum is declined to the device and method of white noise using preceding realization by FDNS |
| CN113129910A (en) * | 2019-12-31 | 2021-07-16 | 华为技术有限公司 | Coding and decoding method and coding and decoding device for audio signal |
Family Cites Families (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0423289A (en) * | 1990-05-18 | 1992-01-27 | Sony Corp | Editing device for digital audio signal |
| WO2005098825A1 (en) * | 2004-04-05 | 2005-10-20 | Koninklijke Philips Electronics N.V. | Stereo coding and decoding methods and apparatuses thereof |
| US7809580B2 (en) * | 2004-11-04 | 2010-10-05 | Koninklijke Philips Electronics N.V. | Encoding and decoding of multi-channel audio signals |
| US7751572B2 (en) * | 2005-04-15 | 2010-07-06 | Dolby International Ab | Adaptive residual audio coding |
| CN101197134A (en) * | 2006-12-05 | 2008-06-11 | 华为技术有限公司 | Method and apparatus for eliminating influence of encoding mode switch-over, decoding method and device |
| CN102157149B (en) * | 2010-02-12 | 2012-08-08 | 华为技术有限公司 | Stereo signal down-mixing method and coding-decoding device and system |
| BR112012025878B1 (en) * | 2010-04-09 | 2021-01-05 | Dolby International Ab | decoding system, encoding system, decoding method and encoding method. |
| EP2375409A1 (en) | 2010-04-09 | 2011-10-12 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio encoder, audio decoder and related methods for processing multi-channel audio signals using complex prediction |
| CN101964189B (en) * | 2010-04-28 | 2012-08-08 | 华为技术有限公司 | Audio signal switching method and device |
| CN102280107B (en) * | 2010-06-10 | 2013-01-23 | 华为技术有限公司 | Sideband residual signal generating method and device |
| WO2012025431A2 (en) * | 2010-08-24 | 2012-03-01 | Dolby International Ab | Concealment of intermittent mono reception of fm stereo radio receivers |
| EP2523472A1 (en) * | 2011-05-13 | 2012-11-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method and computer program for generating a stereo output signal for providing additional output channels |
| CN102446507B (en) * | 2011-09-27 | 2013-04-17 | 华为技术有限公司 | Down-mixing signal generating and reducing method and device |
| EP2761618B1 (en) * | 2011-09-29 | 2016-11-30 | Dolby International AB | High quality detection in fm stereo radio signals |
| EP2830052A1 (en) * | 2013-07-22 | 2015-01-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Audio decoder, audio encoder, method for providing at least four audio channel signals on the basis of an encoded representation, method for providing an encoded representation on the basis of at least four audio channel signals and computer program using a bandwidth extension |
| EP2830053A1 (en) * | 2013-07-22 | 2015-01-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Multi-channel audio decoder, multi-channel audio encoder, methods and computer program using a residual-signal-based adjustment of a contribution of a decorrelated signal |
| EP2854133A1 (en) * | 2013-09-27 | 2015-04-01 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Generation of a downmix signal |
| BR112018014799A2 (en) * | 2016-01-22 | 2018-12-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V. | apparatus and method for estimating a time difference between channels |
| CA3011883C (en) * | 2016-01-22 | 2020-10-27 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for mdct m/s stereo with global ild to improve mid/side decision |
| CN107452387B (en) * | 2016-05-31 | 2019-11-12 | 华为技术有限公司 | A kind of extracting method and device of interchannel phase differences parameter |
| CN107742521B (en) * | 2016-08-10 | 2021-08-13 | 华为技术有限公司 | Coding method and coder for multi-channel signal |
| CN107731238B (en) * | 2016-08-10 | 2021-07-16 | 华为技术有限公司 | Coding method and coder for multi-channel signal |
| CN110556118B (en) * | 2018-05-31 | 2022-05-10 | 华为技术有限公司 | Coding method and device for stereo signal |
-
2018
- 2018-05-31 CN CN201810548874.9A patent/CN110556116B/en active Active
-
2019
- 2019-05-30 EP EP19810301.2A patent/EP3786946A4/en active Pending
- 2019-05-30 JP JP2020566829A patent/JP2021525391A/en active Pending
- 2019-05-30 WO PCT/CN2019/089232 patent/WO2019228447A1/en unknown
- 2019-05-30 KR KR1020207035748A patent/KR102618380B1/en active IP Right Grant
- 2019-05-30 KR KR1020237044298A patent/KR20240005152A/en active Application Filing
- 2019-05-30 SG SG11202011333WA patent/SG11202011333WA/en unknown
- 2019-05-30 BR BR112020024140-7A patent/BR112020024140A2/en unknown
-
2020
- 2020-11-25 US US17/104,425 patent/US11961526B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2021525391A (en) | 2021-09-24 |
| US11961526B2 (en) | 2024-04-16 |
| US20210082442A1 (en) | 2021-03-18 |
| CN110556116A (en) | 2019-12-10 |
| KR20210010510A (en) | 2021-01-27 |
| KR20240005152A (en) | 2024-01-11 |
| CN110556116B (en) | 2021-10-22 |
| BR112020024140A2 (en) | 2021-02-17 |
| KR102618380B1 (en) | 2023-12-27 |
| WO2019228447A1 (en) | 2019-12-05 |
| EP3786946A4 (en) | 2021-06-16 |
| EP3786946A1 (en) | 2021-03-03 |
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